19904973

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{941}}^1$

素因数の和:1596

約数の個数: 16

約数和(自身を含む): 29028672

約数和(自身を除く): 9123699

約数列:

[1, 3, 11, 33, 641, 941, 1923, 2823, 7051, 10351, 21153, 31053, 603181, 1809543, 6634991, 19904973]

約数ペア:

[(1, 19904973), (3, 6634991), (11, 1809543), (33, 603181), (641, 31053), (941, 21153), (1923, 10351), (2823, 7051)]